Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 503621f31e57f0b9222af8cb68f67f4fce27f87fb700663bf0c976c3beb62e85:16:8
   |
16 |         let total: UFix64 = SwapConfig.ScaledUInt256ToUFix64(res) - 0.2
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^